XGY   Grimsby Mountain, ON
Weather Observed At   43-11  N    79-34  W
 
*** AURBO GREEN WARNING IN EFFECT ***
  2026-07-23 3:45pm Max
Min
  Weather
----



  Temperature
24.3 °C
24.9 °C
  1:57pm
10.2 °C
  4:47am
  Relative Humidity
43 %
86 %
  6:16am
39 %
  1:32pm
  Dew Point
10.9 °C
14.4 °C
 11:46am
7.2 °C
 12:00am
  Wind Velocity
22 ° at  2.3 G 5.2 kt
12.2 kt
  6:16am

  Pressure
    30.175 " 
30.198 "
 12:08pm
30.047 "
 12:00am
  Rainfall Rate
0.0 mm/h 0.0 mm/h
 ----m

  Snow On Ground 0 cm

  Brightness / Darkness   791 W/m² /  0.00 m/"² 1097 W/m²
  1:41pm
  19.88 m/"²   12:59am
  Remarks
 
  RainfallToday
0.0 mm
Storm Total
0.0 mm
  SnowfallToday
0.0 cm
Storm Total
0.0 cm
  Evapotranspiration Today
-3.40 mm


  Lake Conditions
  Water Temperature  20.7 °C
  Waves  CALM
ICE FREE

  Meteor Index
49   Perseids
  Aurora Index / Solar
108   Minor Storm   - 3 nT   Solar Flux   150  sfu  /   S 0    G 1    R 0   /  MUF   27.1 MHz
  Sunrise 5:59am
  Sunset 8:49pm

  Moonrise N/A
  Moonset N/A
  Moon Phase Waxing Gibbous

Grimsby Mountain Weather Maps
Local Regional Area Synoptic

     
updated H+09 and every 10m updated H+19 and H+49
updated H+19

Ontario 6-Hour Meteorological Summary
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EOF